baber/WOPTO huggingface dataset:
Patent GB-851783-A (GB)
Title: Production of nitrilotriacetonitrile
IPC: C07C255/25
Filed: 1959-02-24
Abstract: Nitrilotriacetonitrile is prepared by reacting hydrocyanic acid and formaldehyde with one or more compounds of formula HO3S.NRR1, where R and R1 which may be the same or different, are H or -SO3H, e.g. by adding formaldehyde, gaseous or as aqueous solution, to an aqueous solution of the sulphuric and hydrocyanic acids; the reactants are preferably in approximately stoichiometric proportions.  The sulphonic acids may be prepared by passing sulphur trioxide into concentrated aqueous ammonia; by saturating a concentrated hydroxylamine hydrochloride solution with sulphur dioxide; or, as salts, by reacting a concentrated sodium bisulphite solution with sodium nitrite with ice cooling: nitrilosulphonic acid can be obtained from the sodium salt so prepared, and can be hydrolysed to imido sulphonic and amidosulphonic acids.  Specification 496,781 is referred to.
Patent GB-112371-A (GB)
Title: Improvements relating to Cotters.
Inventor: PARISH WILLIAM
IPC: F16G15/06
Filed: 1917-05-04
Abstract: 112,371. Parish, W. May 4, 1917 Cotters.-A cotter b for securing a pin in a shackle &c. is pressed out by a spring and abuts against a lever c mounted on the shackle-pin. In a modification, two cotters are arranged on opposite sides of the pin.
Patent GB-992611-A (GB)
Title: Improvements in control means for asynchronous motors
Inventor: YUNG JEAN MARIE
IPC: H02P25/08
Filed: 1963-02-18
Abstract: 992,611. Control of A.C. motors. COMMISSARIAT A L'ENERGIE ATOMIQUE. Feb. 18, 1963 [Feb. 16, 1962], No. 6433/63. Heading H2J. A stator phase winding 1A of a three phase reluctance motor is supplied from source 3 during time intervals depending on the conductive periods of semi-conductor controlled rectifiers 6, 7, having time-modulated rectangular pulses applied to their control electrodes from modulator circuits 8, 9, each comprising magnetic amplifiers. The circuits 8, 9, are rendered effective alternately according to the phase relationships between voltages which are respectively derived from source 3 and from the seconday winding 53b or 53a of a transformer, the voltage obtained from the winding 53a being in phase opposition to that from the winding 53b. The primary winding of the transformer is connected to a stator winding of a synchro transmitter 5 the rotor winding of which is supplied from source 3 through phase shifter 52. The angular position of the transmitter is adjustable at will, the rotating field of the motor reproducing the movement of the rotor of the transmitter at substantially the same speed. The other motor phases are controlled in a similar manner.
Patent GB-1220033-A (GB)
Title: Oil fuelled heater
IPC: F24C15/00
Filed: 1969-02-06
Abstract: 1,220,033. Burners. COLEMAN CO. Inc. 6 Feb., 1969 [7 Feb., 1968; 20 Feb., 1968 (2)], No. 6447/69. Heading F4T. An oil-fuelled heater includes a casing 11, a burner pot 22 to which fuel is supplied from a tank 14 via a control valve 15 regulated by means of a control knob 17 and shaft 18 or by a thermostat, and a blower 35 driven by an electric motor 37 to supply combustion air, the shaft 18 carrying a by wheel 19 engaging with a pinion 20 connected to a rheostat 21 connected in the motor circuit so that as fuel flow is adjusted, the blower speed is varied also and a baffle plate 42 for varying the length of travel of exhaust gases is moved to increase the length of travel from burner to exhaust outlet passage as fuel supply is increased by means of a linkage to the shaft 18.
Patent GB-323155-A (GB)
Title: Improvements in or relating to the elevating mechanism for the loading hoppers of concrete mixers and like machines
IPC: B28C7/08
Filed: 1929-02-28
Abstract: 323,155. Fowler, C. H., and Hobson, G. Feb. 28, 1929. Feeding-devices.-The loading-hopper 6 of a concrete mixer or like machine is tipped about the axis 7 by ropes 9 wound on drums 10, 11, and compensating mechanism is provided to ensure equal pulls on the two ropes. A single rope may be used passing round the hopper, the two ends being wound on the drums. As shown, the drum 10 is fixed and the drum 11 loose on the shaft 12. The drum 11 and the shaft 12 are connected with the opposite wheels 14, 15 of a differential gear. The planet carrier 17 forms a drum 16, and the gear is driven by unwinding a rope 19 from the drum 16 by means of a power winch 20 provided with a clutch and brake.
Patent GB-491721-A (GB)
Title: Improvements in or relating to presser feet for sewing machines
IPC: D05B29/06
Filed: 1937-03-05
Abstract: 491,721. Sewing-machines. UNION SPECIAL MACHINE CO. March 5, 1937, No. 6522. Convention date, Sept. 19, 1936. [Class 112] The presser foot of a sewing-machine has a sole portion and a fabric - engaging shoe capable of independent vertical movement, the shoe having its opposite ends loosely engaging over the corresponding ends of the presser foot and being yieldinglyurged downwards to facilitate passage over crossseams. The presser 1, Fig. 6, has two flat sole portions 2, 3 on each side of a slot 4 which permits the passage of abutted upstanding margins M, M<1> of cloth F. A group of needles including a centre needle 14 and a pair of flanking needles 16 swing upwards on an arm 13 about a pivot 12 and penetrate the fabric from below to co-operate with loopers 18, 19. The presser foot has an arched shank 21 with a bar 27 by which it is secured to the presser bar 23. The rear end of the bar 27 slidingly engages a guide stud 28 in the sewing head to prevent rotation of the foot. The sole portions 2, 3 are fitted with spring shoes 29, 30 to enable the foot to take work of varying thickness. The spring shoes are attached by notches 35, 36 engaging studs 37, 38 and lugs 41, 42 engaging recesses 43, 44. Spring tongues 45, 46 cause the shoes to be pressed away from the soles. These tongues engage recesses in the under part of the soles. The shoe 30 has a bevelled part B co-operating with a folding device 51 to turn over the upstanding margins M, M<1>, Fig. 11. The excess of margin is trimmed off by blades 56, and the edges finally folded down as shown in Fig. 14, for stitching, as disclosed in Specification 491,719. The completely folded down margins are held in position by a supplemental presser plate 65 held in the slot 4 by a pin 67 fitting in slots 68, 69 in the soles 2, 3, and retained by a pair of spring fingers 70, Fig. 1. The plate 65 holds the work and can move vertically relatively to the presser. The looper loops are laid round the fingers 74, 75.
Patent GB-557174-A (GB)
Title: A collapsible box
IPC: B65D6/16
Filed: 1942-05-15
Abstract: 557,174. Collapsable boxes. VENESTA, Ltd., and BARBER. H. J. May 15, 1942, No. 6620. [Class 18] A collapsable box comprises a rigid lid, a similar rigid bottom b and two foldable members each comprising a side f<SP>1</SP> and an end f forming two mutually hinged parts that are adapted to be folded and housed between the separate lid and bottom for transport empty or for storage and the side or end of each foldable member carries a two-part clip secured thereto for 'holding the members in the erect positions when the flanges h, h' of a clip on the side or end of one member engage respectively the outer and inner surfaces of the end or side of the other member; the clips may be arranged in pairs on the foldable members. Metal clips j on the bottom member, or angle strips, may be provided for receiving the lower edges of the foldable member and the lid may be provided with similar clips or strips. The lid and bottom may have notched metal plates e for positioning binding wires by which the parts of the box are held together or the wires may oe replaced by metal link or similar fasteners.
Patent GB-344218-A (GB)
Title: A device for automatically advancing perforating hammers by sliding on a support
IPC: B21J13/08
Filed: 1930-02-28
Abstract: 344,218. Percussive tools. SOC. METALLURGIQUE DE NORMANDIE, 16, Boulevard Malesherbes, Paris. Feb. 28, 1930, No. 6668. Convention date, Nov. 12, 1929. [Class 124.] A device for feeding perforating-hammers comprises a frame c rigidly secured to the rear end of the hammer, or to its carriage B sliding on the beam A. Rollers D, G bear on the beam flanges and are carried respectively by the frame C and a hand lever I pivotally connected thereto. The roller G is free to move in slots in the lever and is held in a wedged position between the flange A<2> and inclined face J, by a spring H. Rearward motion of the . hammer wedges the roller more securely, the latter being released by forward motion only. In a modification the surface J is replaced by a roller forming the pivot between the frame C and lever I. In a further modification the frame and lever are integral and pivoted to the carriage B, the roller pivot forming the wedging surface for the roller G.
Patent GB-272979-A (GB)
Title: Improvements in presses for cutting and shaping samples of woven fabrics and the like
IPC: D06H7/24
Filed: 1926-03-10
Abstract: 272,979. Hardaker, J. T. March 10, 1926. Cutting-out presses.-In a machine for cutting patterns of fabric a detachable cutter 7 is connected to a crosshead 5 guided in detachable ways 3 and actuated against the urge of a spring 16 by a screw 8. An adjustable stop 13 coacts with a surface 14 to limit the cutting stroke.
Patent GB-273614-A (GB)
Title: Improvements in safety catches for windows, casements, and the like
IPC: E05C17/20
Filed: 1927-03-10
Abstract: 273,614. Dennison, T. H., and Ellis, A. R. March 10, 1927. Stays.-In fastenings for casements comprising a latch-bar attached to the window and having sliding engagement with a hook-plate on the frame from which it can only be disengaged when the window is closed and a reduced portion of the bar registers with the hook-plate, the hook is rotatable but can only be moved when the reduced part is in register. A plain latch-bar 1 is pivotally secured at one end to a plate 2 on the window, is enlarged at the free end 3 and has a reduced portion 9. A plate 4 on the window frame has a fixed hook 5 and a rotatable hook 6, the stem 7 of the latter having a flat 8 so that the two hooks accommodate the full depth of the bar. When the window is closed, the restricted portion 9 registers with the hooks and being clear of the flat 8 the stem 7 can be turned. For maintaining the window in an open position spring catches as 10 hold against the top claw 5. With two windows opening on a common mullion the stems of adjacent hooks 6 are interconnected whereby neither latch-bar can be released unless both windows are closed.
Patent GB-450702-A (GB)
Title: Improvements in and relating to the welts of boots and shoes
IPC: A43B15/00
Filed: 1935-03-04
Abstract: 450,702. Boots &c. ARNOLD, P. C., West Hanover, Massachusetts, U.S.A. March 4, 1935, No. 6738. [Class 17 (ii)] A strip of welting-material is slit longitudinally to form four separable flaps, either by splitting each edge into two contiguous separable flaps or by splitting one edge, as shown, Fig. 2, into three separable flaps 12, 13, 14. The lower edge of an upper 18, Fig. 6, too short to overlast, is secured between two of the flaps 12, 13, the remaining flap serving as a lasting allowance and being lasted in over an insole 20 and secured thereto. The out-turned flange 15 of the welt serves for the attachment of an outer sole. The welting may extend around the whole or a part only of the periphery, the ends in the former case being butted or spliced together.
Patent GB-511760-A (GB)
Title: Improvements in or relating to flexible passage-ways between railway coaches, tramway cars and like vehicles
IPC: B61D17/20
Filed: 1939-03-01
Abstract: 511,760. Collapsable vestibules between vehicles. SOC. ITALIANA PIRELLI. March 1, 1939, No. 6758. Convention date, March 8, 1938. [Class 103 (iv)] In a vestibule connection between railway and like vehicles of the kind in which the walls are formed of sheets of rubber or like resilient material, the sheets 1 are secured to the end 10 of each vehicle by means of a rigid retaining- plate 15, which is attached to the vehicle by bolts or equivalent members 8 and is provided with a hook-shaped portion 6, adapted to receive a head 14 formed on the edges of the sheets to the rear of the bead 14. As shown, the bead 14 is formed by folding back the edges of the sheet, inserting a rope 4 in the fold and stitching the fold at 5. The retaining plate 15 is preferably made adjustable in the longitudinal direction of the vehicle by providing it with slots 9 engaged by the bolts 8. The rubber sheets may be reinforced by surface layers of fabric.
Patent GB-539753-A (GB)
Title: Improvements on and in relation to bearings
IPC: F16C32/06
Filed: 1940-04-16
Abstract: 539,753. Bearings. OLAH; G. April 16, 1940, No. 6821. [Class 12 (i)] A bearing surface has lubricating pockets closed at the sides and provided with an inlet for lubricating fluid, the depth of the pockets having a ratio' between 10 to 1 and 1 to 1 to the minimum permissible play in the bearing. Fig. 1 shows a thrust bearing-surface 3 with pockets 4 and inlets 9, the pockets having sidewalls 11 of uniform depth. The depth y, Fig. 4, between the collar 1 and the bottom of the pocket is much greater than the play x. Where the direction of rotation is reversible an additional inlet 9<SP>1</SP> is provided, both inlets 9, 9<SP>1</SP> having non- return valves 12, 12'.The invention is applicable also to journal and rectilinear-motion bearings.
Patent GB-1369678-A (GB)
Title: Method of and apparatus for coating and filling stranded bodies
IPC: H01B7/285
Filed: 1971-03-16
Abstract: 1369678 Apparatus for coating and impregnating cable BRITISH INSULATED CALLENDERS CABLES Ltd 16 March 1972 [16 March 1971] 6999/71 Heading D1L [Also in Division H1] Apparatus for coating and filling the interstices between elongate elements of an elongate flexible body (e.g. telecommunications cable comprising a plurality of plastics insulated conductors) with a water-impermeable filling medium (e.g. petroleum jelly) comprises a closed cylindrical chamber 1 surrounded by a heater 2, an inlet port 3 and outlet port 4 for introduction and removal of the filling medium to and from the chamber under pressure, inlet and outlet dies 5 and 6 respectively through which the body passes to and from the chamber, annular bodies 9 and 10 of heat insulating material positioned to limit heat losses from the chamber 1, and annular cooling chambers 7 and 8 surrounding the dies 5 and 6 and cooled with e.g. water to maintain the dies at a temperature which prevents leakage of filling medium from the chamber. The filling medium may pass through the chamber 1 in the same or the opposite direction to the body to be treated. In a modification (Figs. 2 and 3, not shown) the inlet die has more than one orifice to allow a plurality of cables to pass into the chamber and the outlet die has a single opening large enough to allow all the cables to pass out of the chamber. With this arrangement a plurality of separate cables are simultaneously impregnated with water proof filling medium and laid-up together to form a single composite core. The coating and filling apparatus is preferably arranged on the outlet side of a final bunching or stranding head of apparatus for manufacturing multicore conductor cable.
Patent GB-1064234-A (GB)
Title: Improvements in fluid heating apparatus particularly for smoke generators or the like
Inventor: HART KENNETH CHARLES EVERITT
IPC: A01G13/06
Filed: 1964-02-19
Abstract: 1,064,234. Generating smoke. C. F. TAYLOR (ELECTRONICS) Ltd. May 12, 1965 [Feb. 19, 1964], No. 7019/64. Heading A5G. [Also in Division F4] Apparatus for heating a foaming mixture of oil and CO2 in the production of smoke as described in Specification 1,039,729, comprises a metal block A with a through boring B into which is forced a plug G, either the bore or the plug or both being formed to provide a sinuous passage for the fluid being heated. As shown the bore is plain and the plug screw threaded to form a helical passage L, the plug is secured by nuts H, and an inlet passage for the fluid and outlet for the smoke are provided by bores J in the ends of the bolt communicating by transverse bores K with the thread. The block is heated by an electric heater E controlled by a thermostat F. The bore B may be tapped and the plug plain, or both parts may be threaded with a slack fit and the plug held endwise by a lock nut to provide the helical passage.
Patent GB-991593-A (GB)
Title: Cis-syn-trans steroid and d-homo-steroid compounds having an aromatic ring a
Inventor: HUGHES GORDON ALAN
IPC: C07J1/00
Filed: 1960-02-29
Abstract: The invention comprises cis-syn-trans steroid compounds of formula <FORM:0991593/C2/1> wherein R is H, alkyl or acyl, R1 is C2- 20-alkyl, Y is C = O (optionally ketalized) or CHOH and the atoms H are trans. to R1 and specifically those wherein (1) R is CH3, Y is C = O and R1 is ethyl (a), isopropyl or cetyl; (2) R is CH3, Y is CHOH(a) or ethylenedioxymethylene (b) and R1 is ethyl; (3) R is H, Y is C = O and R1 is ethyl; the compound in which Y is CHOH and R = R1 = CH3 is also claimed.  These compounds are prepared by a process for preparing generally a cis-syn-trans compound of formula <FORM:0991593/C2/2> by catalytic hydrogenation of a compound of formula <FORM:0991593/C2/3> wherein R is H, alkyl or acyl, R1 is alkyl, Y is C = O, CHOH or a derivative group convertible by hydrolysis thereto, Q is CH2 or CH2CH2 and T is an ethylenic linkage or a saturated C-C bond with an H atom at the 14-position trans to R1.  Compound (3) is made alternatively by splitting the ether group in (1) (a), and the latter by reacting 2 (b) with HCl. The process of the invention is also exemplified for the case in which (first formula) R is acetyl, Y is C = O and R1 is CH3; the product is hydrolysed to the corresponding compound (R = H).  No examples are given for the D-homosteroids.
Patent GB-103592-A (GB)
Title: Vernier Drilling Gauge
Inventor: MOULDS EDWARD
IPC: B23B47/28
Filed: 1916-05-17
Abstract: 103,592. Moulds, E. May 17, 1916. Drilling.-A drill jig comprises a bar A adjustable on guides B above a work-support C and formed as a slideway for a bar E extending at right-angles and clamped at N. Bushes L are fitted in blocks H sliding on ribs G in a slot in the bar E and clamped at J. Scales and verniers ara provided for effecting a setting.
Patent GB-110511-A (GB)
Title: Improvements in Button Clasps.
Inventor: STUART HENRY JOSEPH
IPC: A41F11/04
Filed: 1917-05-17
Abstract: 110,511. Stuart, H. J. May 17, 1917. Stocking-suspender grips.- The button tape C is threaded through the slotted base-plate 2 of a wire stud 3, which is passed through the tape, and an elastic sleeve 8 having a headed portion 7 is pressed on to the stud to hold the tape against the base and complete the button member. In the arrangement shown in Fig. 2, one end 13 of the tape is threaded through the slots 11, 12 of the base-plate and the stud 3 is then passed through a hole 14 in the tape, the other end 15 of which is passed through the suspension loop A, over a bar F of the bottom loop B, and then through the slots 11, 12 behind the end 13. Fig. 7 shows the method of attaching the tape when the base-plate is provided with three slots. Alternatively, the tape may be used singly, one such arrangement being shown in Fig. 9, in which the stud 3 is passed through the tape twice.
Patent GB-194724-A (GB)
IPC: H01J13/48
Filed: 1923-03-12
Abstract: 194,724. Akt.-Ges. Brown, Boveri, et Cie. March 11, 1922, [Convention date]. Low-pressure metallic-vapour apparatus.-An auxiliary anode, which serves to ignite and excite the arc of a mercury or other metallic vapour rectifier, extends through and is insulated from a mercury cathode except at the upper end which lies close to the surface of, and is in contact with, the mercury, when the rectifier is not in operation. An auxiliary supply e of continuous or alternating current is passed through the high resistance contact between the auxiliary anode c and the mercury a, thereby forming an arc g which starts the main arc h to the anode b. The auxiliary anode. consists of a non.corrodible material such as iron, platinum, tungsten or carbon and is insulated by a quartz tube d. During working the position of the main arc remains adjacent to the auxiliary anode. The end of the auxiliary anode may be concave, convex, or flat, and, when the rectifier is not in operation, the end may be below the surface of the mercury; or the auxiliary electrode may float on the mercury. In another arrangement, the auxiliary anode is adapted to be raised mechanically or electromagnetically to start the arc. For polyphase circuits a number of auxiliary anodes may be used.
Patent GB-1534347-A (GB)
Title: Method and apparatus for transferring sterile contents from one container to another
IPC: A61J1/14
Filed: 1976-02-24
Abstract: 1534347 Liquid transfer between containers BAXTER TRAVENOL LABORATORIES Inc 24 Feb 1976 [12 March 1975] 07133/76 Heading B8T Two sterile containers, e.g. blood bags, 10, 12 have flexible fluid transfer tubes 15, 16 respectively, each tube having a diaphragm 30 spaced from the free end thereof. A doubleended, hollow-spike 26 fits tightly into the bore of each tube 15, 16 and, when so fitted, the spike and that part of the tubes 15, 16 extendng from each diaphragm 30 is sterilized, e.g. by heating for one minute at 250 C. in an electric oven 58a. The tubes 15, 16 are then axially collapsed so that the spike 26 fractures both diaphragms 30 and sterile contents can then pass from one container to the other, after which one, or both, of the tubes 15, 16 are sealed, e.g. at 61 by a dielectric heat sealer thereby maintaining the sterile integrity of at least one of the containers 10, 12 after entry thereto. Preferably the tubes 15, 16 have silicone rubber connectors 21, 22 each defining flanges 31, 33, 35 and the diaphragm 30. A brass clip 38, provided on each connector 21, 22, has a cylindrical portion 50 extending between the flanges 31 and 33, a strip 46 passing through an aperture 58 in the flange 33 and a second cylindrical portion 48. The clips 38 prevent axial collapse of the parts 60 of the connections 21, 22 until tabs 52 are pulled (Fig. 5) so that the clips are bent about lines of weakness (not shown) in the strips 46. As seen in Fig. 1, the blood bags 10, 12 are provided with several fluid transfer tubes 14 to 18 while, in the embodiment of Fig. 6 (not shown), a single tube branches out into several fluid transfer tubes.